ASME B16.9 Carbon Steel Reducers 

Eccentric reducers have minimum turbulence entrapment and require minimum setting up space.It is a fitting used in piping systems between two pipes of different diameters. The same fitting can be used in reverse as an eccentric increaser or expander.  Concentric Reducer Buttweld concentric reducer is also called welded concentric coupling. It allows from connecting a large pipe to a smaller pipe by means of welding. A concentric reducer allows welded connection between two pipes with the same center line.In concentric reducers the area reduction is concentric and the center line of the pipe on a bigger end and smaller end remains the same.  These styles are normally used for vertical lines. So in concentric reducers, the pipe axis remains the same. Reducers are reversible and can be used in any direction. Eccentric Reducer Eccentric reducer is a fitting used in piping systems between two pipes of different d…